scholarly journals Gravitational waves from vacuum first-order phase transitions: From the envelope to the lattice

2018 ◽  
Vol 97 (12) ◽  
Author(s):  
Daniel Cutting ◽  
Mark Hindmarsh ◽  
David J. Weir
Keyword(s):  
Phase Transitions ◽  
Gravitational Waves ◽  
First Order ◽  
First Order Phase

scholarly journals Probing Trans-Electroweak First Order Phase Transitions from Gravitational Waves

Physics ◽  
2019 ◽  
Vol 1 (1) ◽  
pp. 92-102 ◽  
Author(s):  
Andrea Addazi ◽  
Antonino Marcianò ◽  
Roman Pasechnik
Keyword(s):  
Phase Transitions ◽  
Gravitational Waves ◽  
Particle Physics ◽  
High Energy ◽  
Energy Scale ◽  
Beyond The Standard Model ◽  
Critical Temperatures ◽  
First Order ◽  
Very High Energy ◽  
First Order Phase

We propose direct tests of very high energy first-order phase transitions, which are elusive to collider physics, deploying the gravitational waves’ measurements. We show that first-order phase transitions lying in a large window of critical temperatures, which is considerably larger than the electroweak energy scale, can be tested from advanced LIGO (aLIGO) and the Einstein Telescope. This provides the possibility to probe several inflationary mechanisms ending with the inflaton in a false minimum and high-energy first order phase transitions that are due to new scalar bosons, beyond the Standard Model of particle physics. As an important example, we consider the axion monodromy inflationary scenario and analyze the potential for its experimental verification, deploying the gravitational wave interferometers.

scholarly journals Limiting first-order phase transitions in dark gauge sectors from gravitational waves experiments

2017 ◽  
Vol 32 (08) ◽  
pp. 1750049 ◽  
Author(s):  
Andrea Addazi
Keyword(s):  
Phase Transition ◽  
Phase Transitions ◽  
Standard Model ◽  
Gravitational Waves ◽  
Parameter Space ◽  
Higgs Potential ◽  
Electroweak Phase Transition ◽  
First Order ◽  
First Order Phase

We discuss the possibility to indirectly test first-order phase transitions of hidden sectors. We study the interesting example of a Dark Standard Model (D-SM) with a deformed parameter space in the Higgs potential. A dark electroweak phase transition can be limited from next future experiments like eLISA and DECIGO.

GRAVITATIONAL WAVES FROM COSMOLOGICAL PHASE TRANSITIONS

2009 ◽  
Vol 24 (08n09) ◽  
pp. 1541-1544
Author(s):  
ARIEL MÉGEVAND
Keyword(s):  
Phase Transition ◽  
Phase Transitions ◽  
Gravitational Waves ◽  
Order Phase Transition ◽  
Gravitational Radiation ◽  
First Order ◽  
First Order Phase Transition ◽  
First Order Phase

I discuss the gravitational radiation produced in a first-order phase transition due to the turbulence that is caused by bubble expansion. I compare the cases of deflagration and detonation bubbles.

scholarly journals Gravitational waves from cosmological first order phase transitions

2016 ◽  
Author(s):  
Kari Rummukainen ◽  
Stephan J Huber ◽  
Mark B. Hindmarsh ◽  
David Weir
Keyword(s):  
Phase Transitions ◽  
Gravitational Waves ◽  
First Order ◽  
First Order Phase

scholarly journals Dark holograms and gravitational waves

2021 ◽  
Vol 2021 (4) ◽  
Author(s):  
Francesco Bigazzi ◽  
Alessio Caddeo ◽  
Aldo L. Cotrone ◽  
Angel Paredes
Keyword(s):  
Phase Transitions ◽  
Gravitational Waves ◽  
Chiral Symmetry Breaking ◽  
Power Spectra ◽  
Model Parameters ◽  
Sound Waves ◽  
Critical Temperatures ◽  
Two Phase ◽  
First Order ◽  
First Order Phase

Abstract Spectra of stochastic gravitational waves (GW) generated in cosmological first-order phase transitions are computed within strongly correlated theories with a dual holographic description. The theories are mostly used as models of dark sectors. In particular, we consider the so-called Witten-Sakai-Sugimoto model, a SU(N) gauge theory coupled to different matter fields in both the fundamental and the adjoint representations. The model has a well-known top-down holographic dual description which allows us to perform reliable calculations in the strongly coupled regime. We consider the GW spectra from bubble collisions and sound waves arising from two different kinds of first-order phase transitions: a confinement/deconfinement one and a chiral symmetry breaking/restoration one. Depending on the model parameters, we find that the GW spectra may fall within the sensibility region of ground-based and space-based interferometers, as well as of Pulsar Timing Arrays. In the latter case, the signal could be compatible with the recent potential observation by NANOGrav. When the two phase transitions happen at different critical temperatures, characteristic spectra with double frequency peaks show up. Moreover, in this case we explicitly show how to correct the redshift factors appearing in the formulae for the GW power spectra to account for the fact that adiabatic expansion from the first transition to the present times cannot be assumed anymore.

scholarly journals Gravitational waves from vacuum first-order phase transitions. II. From thin to thick walls

2021 ◽  
Vol 103 (2) ◽  
Author(s):  
Daniel Cutting ◽  
Elba Granados Escartin ◽  
Mark Hindmarsh ◽  
David J. Weir
Keyword(s):  
Phase Transitions ◽  
Gravitational Waves ◽  
First Order ◽  
First Order Phase

scholarly journals Effect of density fluctuations on gravitational wave production in first-order phase transitions

2021 ◽  
Vol 2021 (12) ◽  
pp. 019
Author(s):  
Ryusuke Jinno ◽  
Thomas Konstandin ◽  
Henrique Rubira ◽  
Jorinde van de Vis
Keyword(s):  
Phase Transitions ◽  
Gravitational Wave ◽  
Gravitational Waves ◽  
Early Universe ◽  
Bubble Size ◽  
Large Scale ◽  
Density Fluctuations ◽  
First Order ◽  
Density Perturbations ◽  
First Order Phase

Abstract We study the effect of density perturbations on the process of first-order phase transitions and gravitational wave production in the early Universe. We are mainly interested in how the distribution of nucleated bubbles is affected by fluctuations in the local temperature. We find that large-scale density fluctuations (H * < k * < β) result in a larger effective bubble size at the time of collision, enhancing the produced amplitude of gravitational waves. The amplitude of the density fluctuations necessary for this enhancement is 𝒫ζ (k *) ≳ (β/H *)-2, and therefore the gravitational wave signal from first-order phase transitions with relatively large β/H * can be significantly enhanced by this mechanism even for fluctuations with moderate amplitudes.

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